Home / 30,905.94-46,361.21-13,134.60

Finding the Fourth Proportional to 30,905.94, 46,361.21 and 13,134.60

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Solution

The fourth proportional to 30,905.94, 46,361.21 and 13,134.60 is: 19,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.94 : 46,361.21 = 13,134.60 : x
  2. Step 2: Convert to fraction form
    30,905.94/46,361.21 = 13,134.60/x
  3. Step 3: Cross multiply
    30,905.94x = 46,361.21 × 13,134.60
  4. Step 4: Simplify right side
    30,905.94x = 608,935,999.10
  5. Step 5: Solve for x
    x = 608,935,999.10/30,905.94
  6. Step 6: Final answer
    x = 19,702.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.